Posted by Queenmfn on June 22, 2008, 1:42 pm
For those of you that don't know.... my man is still trying to fix
this Yamaha Seca 750 that was sitting for 8 years or so. He has
rebuilt the carbs, replaced spark plugs, oil change, adjusted float
bowls a few times...
It has a hard time starting, and idling... once it's running, and take
it for a ride/warm it up, and shut it off, let it sit for 15-20
minutes it will start up with no problem. When it's totally cooled
off, it won't start up.
Found out that it's missing a battery sensor, could this possibly be
the cause of the problem...?
Any ideas??? Ideas please let me know asap... trying to get this bike
on the ROAD!!!
Posted by The Older Gentleman on June 22, 2008, 2:07 pm
> Found out that it's missing a battery sensor, could this possibly be
> the cause of the problem...?
No.
--
BMW K1100LT Ducati 750SS Honda CB400F, SL125 & SH50 Yamaha XT600E
chateau dot murray at idnet dot com
"What you're proposing to do will involve a lot of time
and hassle for no tangible benefit."
Posted by Who Me? on June 22, 2008, 2:55 pm
> It has a hard time starting, and idling... once it's running, and take
> it for a ride/warm it up, and shut it off, let it sit for 15-20
> minutes it will start up with no problem. When it's totally cooled
> off, it won't start up.
Y'all DO know what a choke is, don't you? And when to use it ??
It sounds like the idle circuit is too lean. Could be the idle jets are
still not clean, a vacuum leak somewhere or the choke/enricher circuit not
working right.
Posted by Robert Roland on June 23, 2008, 4:35 am
On Sun, 22 Jun 2008 10:42:30 -0700 (PDT), Queenmfn
>It has a hard time starting, and idling... once it's running, and take
>it for a ride/warm it up, and shut it off, let it sit for 15-20
>minutes it will start up with no problem. When it's totally cooled
>off, it won't start up.
These old Yamahas are known for their weak ignition system. Combined
with a very strong (power hungry) starter, you will not get a good
enough spark unless the battery is in very good condition.
It might be worth trying a new battery.
You should also check the fuse box. After all that time, the fuse
holder may have gone brittle, and unable to make proper contact.
--
RoRo
Posted by Messenger on June 23, 2008, 6:49 am
> On Sun, 22 Jun 2008 10:42:30 -0700 (PDT), Queenmfn
>>It has a hard time starting, and idling... once it's running, and take
>>it for a ride/warm it up, and shut it off, let it sit for 15-20
>>minutes it will start up with no problem. When it's totally cooled
>>off, it won't start up.
> These old Yamahas are known for their weak ignition system. Combined
> with a very strong (power hungry) starter, you will not get a good
> enough spark unless the battery is in very good condition.
> It might be worth trying a new battery.
> You should also check the fuse box. After all that time, the fuse
> holder may have gone brittle, and unable to make proper contact.
> --
> RoRo
Check the valve clearances!!
Tom B
08 ZX14
84 Z1000 Street Fighter
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> the cause of the problem...?
No.
--